I know what you mean here, especially wrt Haskell, however I've been recently ploughing through the Standard ML videos hosted by Washington University (which also later apparently goes into Racket and Ruby), and found it has aided my understanding greatly. I'd certainly suggest having a look too, if only for the SML stuff, then maybe having another go at Haskell.

I'd also poke about at the wiki-book 'Write a scheme in 48 hours' (in Haskell) which I've also found useful (although the pdf version has some errors, so I've been preferring the HTML version http://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_H... )

Apologies if you've already been through these materials! :)

http://courses.cs.washington.edu/courses/cse341/13wi/